A W12 x 65 of A572 steel (E= 350 MPa and Fy= 450 MPa) is used as a compression member. It is 8 m long, pinned at each end, and has additional support in the weak direction at a point 3.65 m from the top. Can this member resist a service DL= 800 KN and a service LL= 1420 KN? Use ASD.

A W12 x 65 of A572 steel (E= 350 MPa and Fy= 450 MPa) is used as a compression member. It is 8 m long, pinned at each end, and has additional support in the weak direction at a point 3.65 m from the top. Can this member resist a service DL= 800 KN and a service LL= 1420 KN? Use ASD.

Steel Design (Activate Learning with these NEW titles from Engineering!)

6th Edition

ISBN:9781337094740

Author:Segui, William T.

Publisher:Segui, William T.

Chapter10: Plate Girders

Section: Chapter Questions

Problem 10.5.2P

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Braced cuts

The braced cut is a method of providing lateral support to the soil in foundation trenches, to prevent the trenches from deformation by the caving in of soil and resisting it from moving laterally. During shallow excavation in firm soil, generally, slopes are provided to resist the caving in of soil. During shallow excavation in soft soil and deep excavation, the chances of caving in of soil increase. Hence, it becomes necessary to make a provision to resist the deformation of trenches due to caving in of soil. The braced cut is the method used for such conditions. The excavation using braced cuts is a bit uneconomical as compared to the traditional open-cut excavation method but provides better safety than the cut excavation method.

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A W12 x 65 of A572 steel (E= 350 MPa and Fy= 450 MPa) is used as a compression member. It
is 8 m long, pinned at each end, and has additional support in the weak direction at a point
3.65 m from the top. Can this member resist a service DL= 800 KN and a service LL= 1420
KN? Use ASD.

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